Giles ck



etnias l@ i-tattili()N, or MARSHALL, tit-longterm- Lcemraatf No. 74,053, am@ February 4, 1868.

IMPROVEMENT' 1u THREE-'Hesse nommer..

dts .tgehule munt tu lattina lttttts ntmt munching gaat nf tigt rame.

TO ALLWHOM IT MAY CONCIRN;

Beit known that I, GILES CRAMTON, of the city of Marshall, in the county of Calhoun, and Stateof Michigan, have invented a new and useful Improvement in. Threc-llorse Equalizers g and I do hereby declare. that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, mal-:ing a part of this specification, in which- Figure 1 is a perspective view. i Figure 2 is a cross-section in the-line x. Figure 3' is a plane view, half easing removed. Similar letters of reference indicate like parts in all the figures. e Y

1y invention relates to a device to he coupled with a plough, stoneboat, o1' any vehicle, or machine; or implement tclie' drawn by a team et' three horses working abreast, for thel purpose of more perfectly eqilallliingfA the power of draught-between the single' iniddle horse and the two outer ones, also tgive more compaetness and protection to the several parts,`lajnd 'prevent the constant tnngling to which the'hitchinggear is so subject in other devices for this purpose and the better to euahleothers skilled in this hranh lto construct 1ny invention,

I will now proceed toldeseribe itwith sullieient minuteness. l

A represents a hollow circular disk, of cast iron, constructed in twcequal parts, which I generally holt togetherthrougha coupling-tongue, Ih on one side, and on the other through the projecting end of a. hand, C, which I cast on the faces, t0 confer strength, and additional thickness for pulley-bearings, to be hereinafter described; and -I lock the edges ofthe disk-rims together hy a rahbet-joint, to keep them firmly in place, as

maybe clearly .seen in the section, tig. 2. The two rimmed disks, when thus bolted together, form a case, within which I hang the pulley D, of two steps, the diameter of the smaller step-face heingonly half that of'the larger one, and the pulley-steps may lhe either let, as seen in lig. 2, or grooved, as shown hy the dotted lines, to receive the hitchingehain, which passes partially around them, and connects therewith the single iniddle horse whillle-trec E, and the douille-tree F, (broken oth) to whieh'the two 4outerhorses are hitched. v

Thedisk or case A, may, if desired; he made to conform'in sha-pe with'the steps ofvthe'pulley, and should he just large enough to allow the pulley andlits chain te work freely inside, c are being taken that the portion of chain on the large Vpulley he confined laterally/if necessary, by a llange' a, or' other equivalent device.-

I prefer connecting the pulleys with the single and double-tree, by one length of chain, G, see/n in fig. 3; a link near the middle being inserted snuglyin a cross-notch in the pulleyange, andra-portion of the chain carried back and bent round a pimp, and over a portion of the small pulley, and through the rim, as at I). The Y l other half, passing over,part of the large pulleys periphery, goes `through'the opposite disk-rim, and Kis hitched in any of the ordinary ways to the whiflle-tree E, while the other end connects, of course, the pulley of smallestl vleverage with the double-tree, to which the outer horses are hitched.

Any suitable couplingideviee, adapted to the thing to he drawn, cas., or otherwise connected with the easing. may be used in place ofthe eoup'ling-toi'igue ll; ner is it essential to employ a single chain to act on hoth faces of the pulley D, as hereinhefore described, for a separate chain, or a tug'of any proper kind, lnay he hitched t0- each face hy a pimp, or equivalent device, and produce substantially the same ell`eet.v

When the equalizer s eonnected,`hy its eouliling-tongue, B, to the thing,r to he drawn, and its pulley-chains are hitched, as previously described, to the respective teams, the ability of thetwo outer horses to get ahead isV neutralized, by reasonol' their portion of the hitching-ehain passing over the pulley of heli` size or leverage, i and, il' either team should occasionally get the start a little, it is unimportant, for they may come and go a. distance nearlyequal to that around the entire periphery ot' the haltsized pulley, and the relative leverage be constantly maintained. I i 'i' I. am aware that the arrangement of the double and singletreff, in connection with a long and short lever,` is not new; nor do I claim passing the hitehing-chaius over arcs of circles of 'different radius, or of connecting thorn, in a broad sense, with levers of any description; but I believe that my arrangement produces both novel and much-improved results for the designed use, over all others, being more compact, and adapted for general use with a t'hrec-horseleain. The chain, being encased', cannot get out of place on the pulleys, nor can l i 'l n. Vn y A I c l i e i I .it draw out, on :recount of thering, heen", or other lutchlng-tlevlco at its ends; permits greater length of play,

while proseringthe cqunlizatiom and isisimpleand .cheap in construction.

' Hoving ,lescribcal my invention, what I clainr, :rnd desire to secureby 'Letters Patent, is as follows I I claim the m'1'mi;e11ient :md combination ofthe pulley D, coupling-tongue Il, pin l), hollow-disk easing A, and bitching-chain or elmins G, wit-i1 the wlliHle-tree E, and double-heel?, of o. three-horse team, substantially as and for the purpose vherein described. l

Witnesses:

J onN FARRELL, O'rro; L.. J 01u-sox.

GILES CRAMTON. 

